<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <link rel="stylesheet" href="../../static/css/bootstrap.min.css" th:href="@{/css/bootstrap.min.css}">
</head>
<body>
<form action="/dologin" th:action="@{/dologin}" method="post">
    <input type="text" name="username" placeholder="用户名"><br>
  <input type="submit" value="登录">
</form>
</body>
</html>